Gas-burner.



H. F. WIERUM.

GAS BURNER.

APPLIGATION FILED 0021.9, 1913.

1,109,272, Patented sept. 1, 1914.

THE :vonnis PE1-ERS ca. pHoro-Llmq.. wAsHiNGmN. n. cA

` HoWAnn 'rffvvrnaumj'orurrnn 1uolvrenzurt,.innsnfYQy if GAS-BURNER. l

To allrwaom it may concern fBe itjknovvnfthatfI, HOWARD F.2d'WiERUM',

` laf citizen' of. the United "States, residing fat Upper Montclair,in the county oflils'sex and State of New Jersey,have'inventedrcertain; yne'vv-` and useful Improvements, in Gas-Burn-- ers, of which the following, is aspec'iflcation.

f rl'Ihe objectof the presentinvention is .theI production of a gas burner f in "whichf the flame 'Willi be thoroughlyk controllable and iniy which-fthe airfandggasshall be very EC'IH* pletely mixed before passingoutlofthe,

urner structure2 in order thatgtheflame may inthe space in-vvhiohthe flame yis burning,

'f may ibe encountered Lin operating ordinary This burner is intended foruse particularly.` in. multiple kshelf, reverberatory-,ore..y roasting furnaces fin which the atmosphere, particularly-in the upper compartments, is

kliable to be extremely.bad,so thatldifieulty gas burners, and' especially ifthedegree, of oxidation or reduction ofthe flame must be controlled.l 1

In the accompanyin volving my invention, in which a different form of mixing member 1s used 1n place of the cone above referred to.

In said drawingsl 10 and 11 represent rec spectively gas and air supplies and areconnected to suitable pipes -provided with valves for the proper regulation of the respective amounts of gas and air. The pipe 10 is connected to the pipe 12 by means of the elbow 13, and the pipe 12 terminates kvWithin the outer casing 14C at a point just back of the mixing cone 15, as shown in Figs. 1 and 2. After the gas leaves the pipe 12 it mixes with theair supplied by'pipe 11, Said mixing being greatly accelerated by means of the gas and' air passing through the non-radial perforations 16 in the cone shaped member. The assage of the gases through the slots 16, with considerable force, imparts a spiral motion to the gases in the chamber 17 located around the cone shaped member 15, which mixes the gas and air very combe maintained either oxidizing or reducing,y irrespective' of the quality of the atmosphere g draWings,\Figure .1f illustrates partly. in vertical ,sectiony and l partly in elevation a burner constructed'inf accordance With mywinvention. The cone* in said burner being shown as taken on the section line 1 1 of Fig. 2. Fig. 2`shovvson a' somewhat larger scale, l an .end .vievv ofthel cone of the device shovvn in Fig.` 1. KA Fige 3 shows a modified structure of burner in-VV e e Y, e i e e c pratentedsept-p'1; 14914,k s Y Applicatignieaoetober 9,1913. sriaixaveazes. A

pieren. sie@ the mixture` yorgie naar in if; the chamberl is in therp'roperproportions e for combustion it is explosive, and toprevent y the flashing back of the flame into this chamber, a fine Wire gauze 18; is located at ornear the: `end ofsaid chamber .117 yas illustrated.

-Thechamber 17 maybe of somewhat,r larger diameter than they middle `part 19 'offl the burneritself,` yas shovvn inFig. l-,for'it maybe thesame sizeandfmay be integral therewith f the pipei12, f and @may fconnecftf toi .this a cylindrical chamber 21?..provdedfv'vith aclosed end 22, and also provided .with` non-radial vhellcally arranged slots 23, .which produce substantially absolute mixing of the air ,andy f f gas `Within' the mixing chamber y17,-jbefore l theV gases reach the Wirefgauze 18, beyond er@ .110i 0111575 helical-.0r Spiral but also.) are .set Aat anlangle e' (partly f tangential or .non-ra,

dial)l to l the conel shapedor cylindrical 4In'ember, which produces amuch greaterlwhirling motion offthegasesinithe .chamber 17 than would; be the ycase `if `the holesmory yslots were made substantially radially (perpendicularf,

'fiflejsurface `ofsad wne-.Shapedmemberl It is a'vvell knovvn fact'thatacandle, or anl oil lamp vvickcannot be kept lighted, in

many underground workings Where the air 1s. bad yet not bad enough to cause great distress 1n breathing. In such a case We probably have at least 12 to 16% of 0,-yety rone cannot light yamatch or a candle, or in fact, maintain combustion.' y It is not a far stretch, of imagination, therefore, to picture an atmosphere in a closedfurnace, which may possibly carry 2, 4, or 6% O but which Would'still refuse to support the combustion of a combustible gas. Therefore, it becomes highly important to cause such a mixture of air (for combustion) and gaa-at the most desirable poing-that complete consumption of the air will be accomplished, Where desired. In both of these burners, the as and air are first admitted into the preliminary mixing chamber l which comprises the space between'the outlet and .of pipec12, and the cone-shaped body 15 (or the cylindrical body 21) 'which latter member has restricted openings 16, (or 23) into an A'little more accurately in atechnical 1sense`,-l

openings being made diagonally, that is the:

slots are helical, andare non-radial, so as to give a whirling motion to the mixed lgases.. Since the total area of the openings 16 (or A 23) is less than the combined cross-sectional areas of' the'l pipe l2', and the annular spacev between the pipe 12 and the pipe 19"(or pipe section 19a) the gases will be caused to travel at a higher rate of speed through these Qopenings, thereby giving a high velocity to the gas and airv emerging from these openings, i -into the supplemental mixing :chamber 17 thereby producing aJvery complete mixing .of the gas and air Within said supplemental mixing chamber,` before the 'gas and air; reach the wire Lgauze 18. The inal discharge of the' mixed air and gas through lthe lscreen at the end of the' outside pipe must.-

be, therefore a very thorough `mixture of :the

,-tfwo, thusibringing about a complete con` sumption of the airg'or to putit Apossibly ai 'thusbringing about as complete a combusl; 'tionof'the -gas as the totalamountof airj' furnished willadmit of, l i" What I' claim as my invention is :e

1'. '.A'burner comprisinginlet pipes for air@ land gas; a" preliminary -fmixingchambem a'nj "element formingy the' end of said'ichambe'r,v said y element being provided with nen-radial f curved slits, saidfslitshaving a t`otalarea,

"-:i equal to less'than the seetionalvarea of said' i for `air and gas, one of said pipes being lochamber; afseuppl'emental mixing chamber adj acent'. said lmember 'provided lwith slits; and a -gauze'closing the 'end'of saidjsu'pplei 'mental mixingchamber. ,Y

gas burner comprising inlet` pipes@l l, Copies of l th'isf'llaient vmliy` be obtained i for 'cated withinthe ether; a peiiminafy mil;- ing chamber receiving'both the gas and air "from said pipes; a hollow body supported at qforming the outer end of said chamber, said body being provided with helical, non- Y, radial slits of less than the sectional area of said chamber; a supplemental mixing chamber adjacentsaid. hollow body, and a gauze closing the end of said supplemental mixing chamber. z

3; gas burner comprising inlet pipes for air andgas,v one of said ypipes being located .within the other; a preliminary mixing chamber, :receiving both the gas and air from said pipes; :afhollow body supported at and forming the outerend of said cham- `ber,^said kbody being provided with helical, non-radiahspiral slits of less thanxthe sectional larea of said chamber;-a supplemental -1: t;

mixing chamber adjacent saidhollowv body, and a' gauze closing the end of said supplemental lmixingchamber 4. In a gas burner, a hollow for producing a mixing of the ,gas and; air, Asaid g. L; body being provided with .non-radial helical i slits, .arranged at'fan angle oblique to the i .axis of said body, substantiallyas described.

v5. In a gas burner, a hollow body for producing a mixing of the ygas :and air, said body being provided with non-radial helical,

.spiral slits, arranged at an angle obliqueto the axis of said bodyfsub'stantially as vdescribed.

In testimony whereof I aiiix myfisignature ffi inlpresence `of ltwo witnesses; l

` I-IOVVARDJF.l WIERUM. lWitnesses: e i ,f C, vW. .LEIMNGER,` y

ELizABn'rrI .Sd-iMiroN.

five vcents each, byadressing lthe Commissioner of atents,

, e ,e washingtitnch 

